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Finding the Fourth Proportional to 684.41, 1,026.61 and 222.23

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Solution

The fourth proportional to 684.41, 1,026.61 and 222.23 is: 333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    684.41 : 1,026.61 = 222.23 : x
  2. Step 2: Convert to fraction form
    684.41/1,026.61 = 222.23/x
  3. Step 3: Cross multiply
    684.41x = 1,026.61 × 222.23
  4. Step 4: Simplify right side
    684.41x = 228,145.55
  5. Step 5: Solve for x
    x = 228,145.55/684.41
  6. Step 6: Final answer
    x = 333.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.